The involvement of vitamin A in the production of secretory IgA in the respiratory epithelium for potential protection against SARS-CoV-2 infection. Revista Alergia México, [S. l.], v. 68, n. 3, p. 185–197, 2021. DOI: 10.29262/ram.v68i3.977. Disponível em: https://ojs.revistaalergia.mx/ojs/index.php/ram/article/view/977. Acesso em: 23 sep. 2026.